Damper regulator for liquid-fuel burners



May 27, 1924. 1,495,437

F. W. POWERS I DAMPER REGULATOR FOR LIQUID FUEL BURNERS Filed March 6,1922 Petenteel Moo 2?, rose,

nnirnn s rnrns 3m W. FQWEM, GE CEICAGQ, ELLINOIS, sssro @WlifiAhlY, @FCHICAQO, ELLIDFGIQ, A

nnrrrne. REGULATGR EQR LIQWE-FUHA RENEW.

Application tiled Etaroh e, 1W2. @eriel iTo. 541,605.

To all whom it may concern:

Be it known that l, FRED W. Powers, o citizen of the United States,endresident of Chicego, in the county of Cook and State of illhnois,have invented certain new and useful lro rovements in a Damper Re ulatorfor Liqui -l nel Burners, ofwhich lowing'is o specification.

My invention relates to devices for use in connection with heatersequipped with liquid incl burners and particularly to a novelorrangernent by which fuel is conserveo.

ilt is customer in the operation of liquid fuel homers in nenters toprovide for tree escape of the waste gases through c stock and toutilize an opening such as that commonl controlled h the ash pit damperfor supp pine the requisite air for proper comhnstion the liquid fuel.it is aiso'cnss tomer to provice tor intermittent operation of thehorn-er antler the control oi a thermostat, Consequently sharing theperiotl when the is not in operetion there is a constont o1? coltl sirthrough the heater where heat is nhsorherl onrl lost.

An object of this invention is to provide means to prevent any such lossof l accomplish the decimal result the folheat to hy the neo or? simpleroeohonisro enel without interrering with the normol operation or he i is .s

corner,

The invention will more renelily nreler stood by reference to theaccompanying drewii r3, which:

Figure l is e View portly oliogrorornotie in character illnstrotingenemplifieetion of my invention, end i Figure is an enlarge-oi elevationor e do toil or the clemper controlling epporetuei lln the showingsheats/rot conventionel form is indieeterl ot lll, e liqnitl inelhiirnerll projecting thereinto, A motor 12 serves to opernte two pumps18, is, the former fie livering incl encl the his r sir under prescoreto the homer hp moons of pipes l5, l8, res oectirely.

'ne is provision with the nsnol srnohe pipe or we to gee ontlet ll,which comronnicetes with e stock 18 seal on ssh pit damper 19. An erm2U, connectecl to the olamper, is on egetl by is link 21, anti on arm22, for t e purpose of? swingih g the rlemper to on open or clwerlosition, The

22, se host shown in ig, 2, is inlernnierl 2% on lorochet tormerl so toport motor for snpplyin of o casing 24, rigidly secured in a desiredlocation adjacent to the damper. Within the casing is a bellows 25, themovable well of which engages the arm 22 by means of a projection 26. Asprin 27 tends to resist the expansion of the he lows and serves to morethe arm to a retracteol position when the force exerted by the bellowsis redocetl The interior of the bellows is in communication with the airpressure developed loy the pump 13, by means of a pipe 28, connected y eT to the pipe 16. 1 The operation is as follows;

When the motor 12 is in o oration, fuel and air under to the burner, t'e air pressure is exerted on the bellows 25, causing the arm 22 tooscillate end to swin the dam erinto the rlotteol line position or lg.11 en, however, the motor is stop eel, by thermostatic action orotherwise, an no more fuel is losing on to the burner, the press irewithin the hollows will he reduced, thereby permitting the ressureare'heing cleliverefi spring; to return the orm to the full lineposition in which position the damper occn pies the full line positionor flip", 1, upon interruption of the burner, the flow of err throoohthe hector is stop eel end no hoot-will he corrieol out throng thestools.

While I here shown the dompenopereting hollows es connected to theeir=pressore o, it is obvious thet e similor result might e secnrerl o3!connecting it to the tool supply pipe, Also the clernper employee; rorsecuring the desired result might he olecerl in the smoke pipe insteadoi the os pit These anol other moclificntions ere contern pletesl in theoppenelecl cloims.

ll claim:

l, in o heeter, the cornhination oil it fuel oil hnrner, motor, moonsopernlole he the liqnio tool on sir nnrier pressure to homer, o pitoleroper in enicl heeter, moons operehle For the com lonstihle mixturefeeding pressure ifor moving the rloinper to lolly open position enclrosin mining it in this position while the humor is in opermtion, enolmoons for toll closing oemper when the operetion or t e motor isinterrupted oncl the burner oiecontinnes operations, I

Q. In e. clerics or? the clew olescriheo, the comhinetion or" e. hector,a liquid fool heroes, tor nee in metres for rleveloping V the toolhonor, as demper Thee erable by said pressure for maintaining It e 1 5damper in open position.

3.111 a device of the class described, the

combination of a domestic heater, a fuel oil burner, means for-supplyinliquid fuel and air under pressure to sm burner, an. ash

means? pit; damper in said heater, means for maintaining said dampernormally in closed position, and means operable by the combustiblemixture-feeding pressure for maintaininnr the damper in open ositionWhenever fuel is being supplied to t e burner,

' Signed at Chicago, Illinois, this 28th day of February, 1922. a

' FRED W. PUWERS.

